[jira] [Created] (ARROW-12704) [JS] use optional chaining

[Dominik Moritz (Jira)]

Dominik Moritz created ARROW-12704:
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             Summary: [JS] use optional chaining
                 Key: ARROW-12704
                 URL: https://issues.apache.org/jira/browse/ARROW-12704
             Project: Apache Arrow
          Issue Type: Improvement
          Components: JavaScript
            Reporter: Dominik Moritz
            Assignee: Dominik Moritz


See 
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Optional_chaining



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